*{
    box-sizing: border-box;
}
html,
body{
    width: 100%;
    height: 100%;
    font-size: 62.5%;
}
/* 取出竖向滚动条 */
html{
    overflow-y: hidden;
    overflow-x: hidden;
}
/*包含以下四种的链接*/
a {
    text-decoration: none;
}
/*正常的未被访问过的链接*/
a:link {
    text-decoration: none;
}
/*已经访问过的链接*/
a:visited {
    text-decoration: none;
}
/*鼠标划过(停留)的链接*/
a:hover {
    text-decoration: none;
    color: black;
}
/* 正在点击的链接*/
a:active {
    text-decoration: none;
}
ul{
    list-style-type: none;
    padding-left: 0;
}
li{
    list-style-type: none;
}



/*                                                          header */
.header-fragment{
    padding-right: 1rem;
}

.header-container{
    height: 100%;
    width: 100%;
}

.incentive{
    display: flex;
    align-items: center;
}

.incentive-text{
    padding-left: 2rem;
    font-size: 1.6rem;
    color: rgb(152, 98, 98);
}

.header-icon{
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

.i-icon{
    font-size: 2.5rem;
}

.placeholder-icon{
    position: absolute;
    left: 3rem;
    top: 1.5rem;
    display: none;
    font-size: 1.2rem;
    color: black;
}

.text-link{
    width: 100%;
    text-decoration: none;
    color: black;
    cursor: pointer;
    /*text-align: center;*/
}



/*                                                              nav  */
.nav-fragment{
    height: 100%;
    background-color: rgba(213, 213, 213, 0.2);
    /* 设置滚动条*/
    overflow-x: hidden;
    -ms-overflow-style: none;
    overflow: -moz-scrollbars-none;
}
/* 设置滚动条*/
.nav-fragment::-webkit-scrollbar{
    width: 0 !important;
}

.color-im{
    color: black !important;
}

.nav-list{
    display: flex;
    width: 100%;
    /*background-color: blue;*/
    flex-direction: column;
}

.user-info{
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 1rem;
}

.user-img{
    margin-top: 2rem;
    width: 8rem;
    height: 8rem;
    border-radius: 4rem;
    background-color: rgb(232, 232, 232);
}

.user-id{
    padding: .5rem;
    font-size: 1.4rem;
}

.nav-items{
    display: flex;
    width: 100%;
}

.item {
    width: 100%;
    margin-bottom: 1.5rem;
    padding-left: 2.6rem;
    /*padding-right: 1.4rem;*/
}

.item-options{
    padding: .5rem;
}

.item-options > .item-option:first-of-type{
    padding-left: 0rem;
    font-size: 1.6rem;
    line-height: 4rem;
}

.item-option{
    margin-top: 1rem;
}

.icon-margin{
    margin-right: 1.5rem;
}

.icon-right{
    display: inline-block;
    float: right;
}

.icon-right:nth-child(odd){
    display: none;
}

.item-option{
    display: flex;
}

.item-option:hover{
    background-color: rgba(183, 183, 183,.2);
}

.option-cursor:hover{
    cursor: pointer;
}

.lose-hidden{
    display: none;
    /*padding-left: 6rem;*/
    font-size: 1.4rem;
    line-height: 3rem;
}

.change-color{
    flex-basis: 100%;
    padding-left: 6rem;
    /*background-color: #0dcaf0;*/
}


@media screen and (max-width: 1199px ) and (min-width: 1050px){
    .item{
        padding-left: .3rem;
    }

    .item-options > .item-option:first-of-type{
        padding-left: 2rem;
    }
}


@media screen and (min-width: 992px) and (max-width: 1050px){
    .item{
        padding-left: 0;
    }

    .item-options > .item-option:first-of-type{
        padding-left: 0;
    }

    .icon-margin{
        margin-left: 0;
    }

    .change-color{
        padding-left: 4rem;
    }
}

@media screen and (max-width: 991px){
    .item{
        padding-left: 0;
    }

    .item-options > .item-option:first-of-type{
        padding-left: 0;
    }

    .icon-margin{
        margin-left: 0;
    }

    .change-color{
        padding-left: 4rem;
    }
}



/*                                                          copyright */
.footer{
    /*display: flex;*/
    /*flex-direction: row;*/
    position: fixed;
    bottom: 0;
    right: 0;
    padding-left: 18%;
    padding-top: 0;
    line-height: 2.5rem;
}

.text-left{
    display: inline-block;
    float: left;
    padding: 0.5rem;
}

.text-right{
    display: inline-block;
    float: right;
    padding: 0.5rem;
}

@media screen and (min-width: 991px){
    .header-container div:nth-child(2){
        transform: translateX(6rem);
    }
    .header-container div:nth-child(3){
        transform: translateX(3rem);
    }
}